Method for obtaining sedum with high temperature and high humidity resistance and application thereof

A high-temperature, high-humidity, high-temperature-resistant technology, which is applied in the field of sedum plants, can solve the problems of different materials, and achieve the effects of good cold resistance, reduced rotting area, and good high-temperature and high-humidity resistance

Inactive Publication Date: 2010-01-20
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Third, the materials are different, and there is no repo...

Method used

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  • Method for obtaining sedum with high temperature and high humidity resistance and application thereof
  • Method for obtaining sedum with high temperature and high humidity resistance and application thereof
  • Method for obtaining sedum with high temperature and high humidity resistance and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1 carries out seedling cultivation to Sedum ablum, Sedum acre and Sedum sexual

[0053] Sedum ablum (SA328), Sedum acre (SA320) and Sedum sexual (SA 371) reproduce easily. Seedlings are sown in the greenhouse in March. Three kinds of sedum plants were quoted from Germany JELITTO company. Because the seeds of this plant are very small, they need to be mixed with fine sand before sowing, and then sow them on the plug substrate. The sowing substrate is a mixture of pastoral soil, peat soil, perlite, and fine sand in a ratio of 1:1:1:1. After sowing, it can be sprayed with atomized water to avoid dispersing the seeds. Water once a day to keep the substrate moist. The greenhouse temperature is between 20-25°C. Sufficient light should be ensured during the day. Germination began after 5 days, and the germination rate reached more than 90% after 10 days. Two months after the seedlings were raised, the field was planted, watered once a week within a month, and...

Embodiment 2

[0054] Embodiment 2 carries out stress growth to Sedum ablum, Sedum acre and Sedum sexual with high temperature and high humidity conditions

[0055] Around the first ten days of July, the daily average temperature reaches above 26°C for a week. At the same time, the maximum relative humidity of the air reaches more than 80%, and a large number of plants (greater than 60%) in ablum, acre and sexual parts begin to rot. As the high-temperature and high-humidity climate continues, the area of ​​decay gradually increases. After 45 days, until late August, when the daily average temperature drops to about 23°C and the relative air humidity drops below 65%, the rotting area has been controlled and will not increase. Afterwards, through field observation, it was found that in the rotten area, buds began to germinate close to the surface, indicating that the growth began to resume.

Embodiment 3

[0056] Embodiment 3 carries out propagation to Sedum ablum, Sedum acre and Sedum sexual

[0057] In this critical state, we selected plants with good performance, good plant shape, thick stems and leaves, bright leaves, and no pests and diseases. Propagation is carried out by cuttings. The specific steps are as follows: select the plants with good performance, separate them from the base of the stem, and then cut off the tip of the stem and the cuttings of the stem. Cutting locations should be selected in areas with the same climatic conditions. After cuttings, water every two days, and after two weeks, it can be changed to water once a week or longer according to the weather conditions. At this time, the weather is suitable for the growth of cutting seedlings: the daily average temperature drops to about 20°C, and the relative air humidity is at 60%, so the seedlings grow rapidly. Screen again after the second summer in the same way. After four years of repetition, new st...

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Abstract

The invention provides a method for obtaining sedum with high temperature and high humidity resistance, which comprises the following steps: (a) culturing seedlings; (b) culturing and screening under conditions of high temperature and high humidity; (c) screening out plants with good plant types, sturdy stem leaves, bright leaf colors and no plant diseases and insect pests, and adopting a plant-dividing cuttage method for propagating; and (d) repeating the step 1 once or a plurality of times till obtaining required high-temperature and high-humidity resistant plant. Sedum ablum, sedum acre and sedum sexangular new strains which can be obtained by screening according to the method have the following advantages: (1) the rot emergent time is remarkably later than before screening; (2) the rot area is remarkably reduced; (3) the plants after the screening are stronger than that of before the screening. The Sedum ablum, sedum acre and sedum sexangular new strains can be used for greening application, particularly urban roof greening and park lawn greening, especially the greening application in Northern areas In China.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a method for obtaining a high-temperature and high-humidity sedum plant and an application thereof. Background technique [0002] Sedum ablum, Sedum acre, and Sedum sexuale are three kinds of plants in the genus Sedum, which are introduced from Germany. The three have good drought resistance and cold resistance. The grass species used for greening in northern my country should have the characteristics of drought resistance and cold resistance. Only such species can better meet the characteristics of the northern climate and environment, and better serve ground greening and roof greening. This is our original intention of introducing them. At present, the plants used to make green lawns in northern my country belong to the family Fabaceae and Gramineae. Although they are relatively cold-resistant, they still have relatively large deficiencies compared with Sedum, Sedum acre and Sedum...

Claims

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Application Information

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IPC IPC(8): A01H1/04A01H5/00
Inventor 陈宇红胡赞民尹维波徐莎
Owner INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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